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BTChip 2016-10-18 00:05:56 +02:00
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Ethereum application : Common Technical Specifications
=======================================================
Ledger Firmware Team <hello@ledger.fr>
Application version 1.0 - 28th of May 2016
Application version 1.1 - 11th of October 2016
== 1.0
- Initial release
== 1.1
- Add GET APP CONFIGURATION
- Add an option to return the chain code in GET ETH PUBLIC ADDRESS
== About
This application describes the APDU messages interface to communicate with the Ethereum application.
@ -38,7 +42,9 @@ The address can be optionally checked on the device before being returned.
| E0 | 02 | 00 : return address
01 : display address and confirm before returning
| 00 | variable | variable
| 00 : do not return the chain code
01 : return the chain code | variable | variable
|==============================================================================================================================
'Input data'
@ -61,6 +67,7 @@ The address can be optionally checked on the device before being returned.
| Uncompressed Public Key | var
| Ethereum address length | 1
| Ethereum address | var
| Chain code if requested | 32
|==============================================================================================================================
@ -121,6 +128,41 @@ The input data is the RLP encoded transaction (as per https://github.com/ethereu
| s | 32
|======================================================================================================
=== GET APP CONFIGURATION
==== Description
This command returns specific application configuration
==== Coding
'Command'
[width="80%"]
|==============================================================================================================================
| *CLA* | *INS* | *P1* | *P2* | *Lc* | *Le*
| E0 | 06 | 00 | 00 | 00 | 04
|==============================================================================================================================
'Input data'
None
'Output data'
[width="80%"]
|==============================================================================================================================
| *Description* | *Length*
| Flags
0x01 : arbitrary data signature enabled by user
| 01
| Application major version | 01
| Application minor version | 01
| Application patch version | 01
|==============================================================================================================================
== Transport protocol